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Finding the Fourth Proportional to 249,284.80, 373,927.20 and 221,728.60

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Solution

The fourth proportional to 249,284.80, 373,927.20 and 221,728.60 is: 332,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,284.80 : 373,927.20 = 221,728.60 : x
  2. Step 2: Convert to fraction form
    249,284.80/373,927.20 = 221,728.60/x
  3. Step 3: Cross multiply
    249,284.80x = 373,927.20 × 221,728.60
  4. Step 4: Simplify right side
    249,284.80x = 82,910,354,557.92
  5. Step 5: Solve for x
    x = 82,910,354,557.92/249,284.80
  6. Step 6: Final answer
    x = 332,592.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.